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Java to json schema maven example: YAML and JSON are simple and nice format for structured data and easier for human to read and write than XML. But there have been no schema for YAML such as RelaxNG or DTD. Below is an example that convert java object to json…

Java to yaml schema maven example: YAML and JSON are simple and nice format for structured data and easier for human to read and write than XML. But there have been no schema for YAML such as RelaxNG or DTD. Below is an example that convert java object to yaml.…

Hive hadoop jar files conflicts for custom UDF/Serde I have faced this problem very often and it take long time figure to resolve libraries conflicts. As Hadoop Map reduce libraries gets preferences when you launch Mapreduce job or hive lanuch mapreduce job and suppose your custom library required latest version…

Solr Multithreaded concurrent atomic updates problem: Solr has few limitations for the data ingestion, as it doesn’t provide row level lock over document. I face this problem while uploading data in bulk to solr5 in multithread environment and I solved it by solrj client side lock. When concurrent threads try…